diff --git a/build-constraints.yaml b/build-constraints.yaml
index 9ab42a0a..99d1c342 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -559,7 +559,7 @@ packages:
         - cassava-conduit
 
     "Dominic Steinitz <dominic@steinitz.org> @idontgetoutmuch":
-        - yarr
+        # - yarr # https://github.com/leventov/yarr/issues/10
         - random-fu
 
     "Ben Gamari <ben@smart-cactus.org> @bgamari":
@@ -2606,9 +2606,6 @@ packages:
         # https://github.com/fpco/stackage/issues/1842
         - dependent-sum < 0.4
 
-        # https://github.com/fpco/stackage/issues/1876
-        - fixed-vector < 0.9
-
         # https://github.com/fpco/stackage/issues/1902
         - hspec < 2.2.4
         - hspec-core < 2.2.4